RMAExpress 0.3 alpha 1 has been released http://www.stat.berkeley.edu/~bolstad/RMAExpress/RMAExpress.html New features/Changes since last release - There is now a checkbox to store residuals when choosing preprocessing - The show menu has an option for Residual images. Choosing this option shows blue to white to red (negative to 0 to positive) pseudo chip images of residuals. It is currently not possible to save or print these images (this will be in the next alpha release),